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首页> 外文期刊>Transactions of the Royal Society of Tropical Medicine and Hygiene >Detection of IgG in sera of patients with schistosomiasis japonica by developing magnetic affinity enzyme-linked immunoassay based on recombinant 14-3-3 protein
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Detection of IgG in sera of patients with schistosomiasis japonica by developing magnetic affinity enzyme-linked immunoassay based on recombinant 14-3-3 protein

机译:通过基于重组14-3-3蛋白的磁性亲和力酶联免疫测定,通过显影磁性亲和力酶联免疫测定血吸虫病患者IgG检测

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Background: Low intensity of Schistosoma infection is the current status in China after long time treatment with praziquantel, therefore more sensitive diagnostic methods are required now. In this study, a magnetic affinity enzyme-linked immunoassay (MEIA) based on the signal transduction protein 14-3-3 of Schistosoma japonicum (Sj14-3-3), was developed for detecting schistosomiasis. Methods: Sera of infected BALB/c mice were collected and analyzed with MEIA and ELISA. Both MEIA and ELISA based on Sj14-3-3 were further used to detect serum IgG in patients. Sera from 58 schistosomiasis-related patients with low-intensity infection, and 30 non-endemic negative controls, were collected to assess the assay. Six sera from paragonimiasis patients were used to analysis cross-reactions. Results: Compared with ELISA, MEIA has a higher ratio of the mean positive value to the mean negative value (P/N) at the same dilution ratio in infected mice (3.71 vs 2.45). Similar results were observed in humans, higher P/N of MEIA compared to ELISA (3.57 vs 2.68). Therewas no cross-reaction with the sera of paragonimiasis patients detected by both MEIA and ELISA. Conclusions: Our studies suggested that MEIA based on recombinant Sj14-3-3 protein (rSj14-3-3) had the potential for the diagnosis of schistosomiasis.
机译:背景:低强度的血吸虫瘤感染是中国经过长期治疗普拉齐亚antel后的现状,因此现在需要更敏感的诊断方法。在该研究中,基于血吸虫血吸虫的信号转导蛋白(SJ14-3-3)的磁性亲和力酶联免疫测定(MEIA)用于检测血吸虫病。方法:收集了感染Balb / C小鼠的血清并用Meia和Elisa分析。基于SJ14-3-3的MEIA和ELISA还用于检测患者的血清IgG。收集来自58例血吸虫病相关患者的血清和30名非流行性阴性对照,以评估测定。来自锥虫病患者的六种血清用于分析交叉反应。结果:与ELISA相比,MEIA在感染小鼠中相同稀释比的平均正值(P / N)的平均正值(P / N)相比(3.71 Vs 2.45)。与ELISA相比,人类中观察到类似的结果,更高的P / N(3.57 Vs 2.68)。因此,没有与Meia和ELISA检测到的锥虫病患者的血清没有交叉反应。结论:我们的研究表明,基于重组SJ14-3-3蛋白的MEIA(RSJ14-3-3)具有诊断血吸虫病的潜力。

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